/*
 * Copyright 2021 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef skgpu_graphite_SharedContext_DEFINED
#define skgpu_graphite_SharedContext_DEFINED

#include <memory>
#include "include/core/SkRefCnt.h"
#include "include/core/SkSize.h"

#include "include/gpu/graphite/GraphiteTypes.h"
#include "src/gpu/graphite/GlobalCache.h"
#include "src/gpu/graphite/ShaderCodeDictionary.h"

namespace skgpu {
class SingleOwner;
}

namespace skgpu::graphite {
class BackendTexture;
class Caps;
class CommandBuffer;
class RendererProvider;
class ResourceProvider;
class TextureInfo;

class SharedContext : public SkRefCnt {
public:
    ~SharedContext() override;

    /* *
     * Gets the capabilities of the draw target.
     */
    const Caps *caps() const
    {
        return fCaps.get();
    }

    BackendApi backend() const
    {
        return fBackend;
    }
    Protected isProtected() const;

    GlobalCache *globalCache()
    {
        return &fGlobalCache;
    }
    const GlobalCache *globalCache() const
    {
        return &fGlobalCache;
    }

    const RendererProvider *rendererProvider() const
    {
        return fRendererProvider.get();
    }

    ShaderCodeDictionary *shaderCodeDictionary()
    {
        return &fShaderDictionary;
    }
    const ShaderCodeDictionary *shaderCodeDictionary() const
    {
        return &fShaderDictionary;
    }

    virtual std::unique_ptr<ResourceProvider> makeResourceProvider(SingleOwner *, uint32_t recorderID,
        size_t resourceBudget) = 0;

protected:
    SharedContext(std::unique_ptr<const Caps>, BackendApi);

private:
    friend class Context; // for setRendererProvider()

    // Must be created out-of-band to allow RenderSteps to use a QueueManager.
    void setRendererProvider(std::unique_ptr<RendererProvider> rendererProvider);

    std::unique_ptr<const Caps> fCaps; // Provided by backend subclass

    BackendApi fBackend;
    GlobalCache fGlobalCache;
    std::unique_ptr<RendererProvider> fRendererProvider;
    ShaderCodeDictionary fShaderDictionary;
};
} // namespace skgpu::graphite

#endif // skgpu_graphite_SharedContext_DEFINED
